This work is a simple implementation of the one time pad algorithm for crypt and decrypt binary files or images (using the PIL library of python).

You can execute the script main.py or directly use the specific script you need in the folder scripts.

When you execute main.py, you'll use the following options : 
	-c or --crypt to specify that you want to crypt a file.
	-d or --decrypt to specify that you want to decrypt a file.
	-p or --picture to specify that you'll work with an image file.
	-i or --input followed by the input file path
	-o or --output followed by the output file name we want
	-k or --key followed by the key file path (if we want do decrypt something)

You can also use the scripts that are in the "scripts" folder, using the same options.

For example, to crypt an image file, you can do :
	python main.py -c -p -i 'the image.extension(jpeg, png...)' -o 'output file name.extension'
	or, from the scripts directory:
	python cryptImg.py -i 'the image.extension(jpeg, png...)' -o 'output file name.extension'

another example, to decrypt a file (of any type), you can do :
	python main.py -d -i 'input file name' -o 'output file name' -k 'the key file name (generated after the encryption)'
	or, from the scripts directory:
	python decryptage.py -i 'input file name' -o 'output file name' -k 'the key file name (generated after the encryption)'

If a picture generate some errors of unprecision in the decryption (especially for jpg/jpeg images), you can consider the picture as a binary file and use the cryptage.py script instead of cryptImg.py.

In case of problem or disfunctionment, please contact me at : gm_djemai@esi.dz

Thank's